13256760258217 has 4 divisors (see below), whose sum is σ = 15150583152256. Its totient is φ = 11362937364180.

The previous prime is 13256760258179. The next prime is 13256760258293. The reversal of 13256760258217 is 71285206765231.

13256760258217 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13256760258217 - 2³¹ = 13254612774569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13256760258017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 946911447009 + ... + 946911447022.

It is an arithmetic number, because the mean of its divisors is an integer number (3787645788064).

Almost surely, 2^{13256760258217} is an apocalyptic number.

It is an amenable number.

13256760258217 is a deficient number, since it is larger than the sum of its proper divisors (1893822894039).

13256760258217 is an equidigital number, since it uses as much as digits as its factorization.

13256760258217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1893822894038.

The product of its (nonzero) digits is 8467200, while the sum is 55.

The spelling of 13256760258217 in words is "thirteen trillion, two hundred fifty-six billion, seven hundred sixty million, two hundred fifty-eight thousand, two hundred seventeen".